1 files changed, 21 insertions, 0 deletions
diff --git a/test/asan/TestCases/Linux/memmem_test.cc b/test/asan/TestCases/Linux/memmem_test.cc
new file mode 100644
index 000000000000..54883004e0aa
--- /dev/null
+++ b/test/asan/TestCases/Linux/memmem_test.cc
@@ -0,0 +1,21 @@
+// RUN: %clangxx_asan  %s -o %t
+// RUN: not %run %t   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=A1
+// RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=A2
+// RUN: %env_asan_opts=intercept_memmem=0 %run %t
+
+#include <string.h>
+int main(int argc, char **argv) {
+  char a1[] = {1, 2, 3, 4, 5, 6, 7, 8};
+  char a2[] = {3, 4, 5};
+  void *res;
+  if (argc == 1)
+    res = memmem(a1, sizeof(a1) + 1, a2, sizeof(a2));  // BOOM
+  else
+    res = memmem(a1, sizeof(a1), a2, sizeof(a2) + 1);  // BOOM
+  // CHECK: AddressSanitizer: stack-buffer-overflow
+  // CHECK: {{#0.*memmem}}
+  // CHECK: {{#1.*main}}
+  // A1: 'a1' <== Memory access at offset
+  // A2: 'a2' <== Memory access at offset
+  return res == NULL;
+}